The Wehrli Custom Fab OEM-placement coolant tank replaces the stock plastic reservoir on 2020–2025 Chevrolet and GMC 6.6L L5P Duramax trucks with a fabricated aluminum tank in Brizzle Blue and a sight glass. It installs at OEM mounting points without additional modifications and includes a billet anodized cap, mounting hardware, overflow hose and low coolant sensor for a polished engine bay upgrade.
Wehrli 20-24 Chevrolet-GMC 6.6L L5P Duramax OEM Placement Coolant Tank Kit - Brizzle Blue